Title:
HIGH POWER DENSITY RADIAL REDUCER FOR TURBOFAN
Document Type and Number:
WIPO Patent Application WO/2021/245180
Kind Code:
A1
Abstract:
Gear reducer (5) with concurrent axes for a high bypass ratio turbofan having a rotational axis X, comprising: - a sun wheel (24) and a crown (20) which are coaxially and radially spaced apart and have a rotational axis X; - a plurality of satellites (16) which have a rotational axis Y transverse to the axis X and are distributed around the axis X and spaced at an angle A, each comprising an inner satellite (13;13') engaging with the sun wheel (24), an outer satellite (15) engaging with the crown (20), a connector (14) coupling the inner satellite (13;13') and the outer satellite (15); characterised in that the plurality of inner satellites (13;13') engages with the sun wheel (24) by radially stacking themselves, consecutively and alternately, over and under each other, by meshing with a first diameter D1, then with a larger second diameter D2 of the sun wheel (24), in order to engage with the latter by overlapping each other diametrically.
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Inventors:
GROLLEAU FRANCK (FR)
Application Number:
PCT/EP2021/064883
Publication Date:
December 09, 2021
Filing Date:
June 02, 2021
Export Citation:
Assignee:
GROLLEAU FRANCK (FR)
International Classes:
F16H1/30; F02C7/36
Domestic Patent References:
| WO2009104473A1 | 2009-08-27 |
Foreign References:
| FR1361588A | 1964-05-22 | |||
| FR2573816A1 | 1986-05-30 | |||
| KR101677939B1 | 2016-11-24 | |||
| US20150267618A1 | 2015-09-24 | |||
| US20160097330A1 | 2016-04-07 | |||
| EP1921253A2 | 2008-05-14 | |||
| EP0814281A2 | 1997-12-29 | |||
| FR1361588A | 1964-05-22 |
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